CN106993251B - Electronic equipment - Google Patents
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- Publication number
- CN106993251B CN106993251B CN201710416778.4A CN201710416778A CN106993251B CN 106993251 B CN106993251 B CN 106993251B CN 201710416778 A CN201710416778 A CN 201710416778A CN 106993251 B CN106993251 B CN 106993251B
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- receiver
- sound
- circuit board
- bracket
- sound guide
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- 230000005236 sound signal Effects 0.000 claims abstract description 38
- 239000000428 dust Substances 0.000 claims description 19
- 239000012535 impurity Substances 0.000 claims description 12
- 230000015556 catabolic process Effects 0.000 abstract description 4
- 238000006731 degradation reaction Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 13
- 238000010586 diagram Methods 0.000 description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 239000000463 material Substances 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 5
- 238000004891 communication Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- DCMURXAZTZQAFB-UHFFFAOYSA-N 1,4-dichloro-2-(2-chlorophenyl)benzene Chemical compound ClC1=CC=C(Cl)C(C=2C(=CC=CC=2)Cl)=C1 DCMURXAZTZQAFB-UHFFFAOYSA-N 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000011358 absorbing material Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/08—Microphones
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2410/00—Microphones
Abstract
The invention provides electronic equipment, which comprises a front shell, a rear shell, a circuit board and a receiver, wherein the front shell is provided with a sound outlet hole; the telephone receiver is arranged between the front shell and the circuit board and is connected with the circuit board, and the vibrating diaphragm of the telephone receiver is arranged towards the sound guide hole; the sound guide hole is communicated with the sound outlet hole through a sound guide channel, and the sound guide channel is used for transmitting sound signals at the sound guide hole to the sound outlet hole. The electronic equipment provided by the invention fundamentally avoids the problem of performance degradation or failure of the telephone receiver in the electronic equipment caused by the entering of external sundries from the structure, and greatly improves the user experience.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to an electronic device.
Background
In recent years, with the development of communication technology and the continuous progress of the age, electronic devices such as mobile phones, notebook computers, tablet computers and the like have become an indispensable tool in daily life of people. Moreover, as the living standard of people is continuously improved, the requirements of users on the performance, structure and appearance of the electronic equipment are also higher and higher. In order to realize the call function, a receiver has become a basic configuration of most electronic devices at present.
The electroacoustic device for converting audio electric signal into sound signal under the condition of no sound leakage (or 3.2 type high/low leakage ring according to ITU standard) is widely used in communication terminal equipment of mobile telephone, fixed telephone and hearing aid, etc. to implement audio (speech and music) playback. The receiver is usually referred to as a moving coil receiver, and the working principle (physical principle) of the receiver is similar to that of a traditional moving coil loudspeaker: the voice coil is arranged in a magnetic gap of a permanent magnet magnetic circuit, and is driven to vibrate up and down by the electromagnetic field force (Lorentz force) generated by the change of current, and drives the vibrating diaphragm to drive front and back air to generate sound waves.
Fig. 1 is a schematic diagram of a receiver in an electronic device in the prior art. As shown in fig. 1, a receiver 14 in a conventional electronic device is disposed in a cavity surrounded by a front case 11, a rear case 12 and an outer frame 19, the receiver 14 is disposed on a Printed Circuit Board (PCB) 18, and the receiver 14 is electrically connected to the PCB 18 through solder joints located at both sides of the PCB 18. Specifically, the receiver 14 is disposed in a cavity formed by the front case 11, the printed circuit board 18, and the two brackets 15. As shown in fig. 1, an opening is provided on the front case 11 to form a sound outlet 17 of the receiver 14, and a diaphragm 141 of the receiver 14 faces the direction of the sound outlet 17 to transmit sound signals outwards through the sound outlet 17. In order to prevent foreign objects from entering the inside of the sound outlet 17 and affecting the performance of the receiver 14, a dust screen 13 is provided at the opening. In order to ensure that the sound emitted from the front cavity of the receiver is smoothly emitted from the sound emitting member Kong Chuanchu, sound absorbing materials 16 are respectively disposed at two opposite sides of the front cavity of the receiver, so as to prevent other noise from affecting the performance of the receiver.
However, the existing receivers have the following drawbacks: firstly, because the receiver is made of a material with permanent magnetism and has the capability of adsorbing impurities such as scrap iron, and the vibrating diaphragm of the existing receiver is arranged opposite to the sound outlet, sound waves emitted by the receiver are directly transmitted to the outside from the sound outlet, and therefore, in the working process of the receiver, the impurities adsorbed from the outside are extremely damaged by the vibrating diaphragm, thereby influencing the performance of the receiver and causing the occurrence of small sound, noise or silence; secondly, because current receiver is directly arranged on the PCB board, not only causes electronic equipment volume great, and the heat that the receiver produced is directly discharged to on the PCB board moreover, is unfavorable for the heat dissipation of receiver on the one hand, on the other hand easily causes the influence to PCB board performance.
Therefore, how to prevent the influence of external sundries on the performance of the receiver and improve the use experience of users is a technical problem to be solved urgently at present.
Disclosure of Invention
The invention provides electronic equipment which is used for solving the problem that the performance of a receiver in the existing electronic equipment is reduced or disabled due to the entering of external sundries, so as to improve the use experience of a user.
In order to solve the problems, the invention provides electronic equipment, which comprises a front shell, a rear shell, a circuit board and a receiver, wherein the front shell is provided with a sound outlet hole, the circuit board is arranged in a closed cavity of the front shell and the rear shell, and the circuit board is provided with a sound guide hole; the telephone receiver is arranged between the front shell and the circuit board and is connected with the circuit board, and the vibrating diaphragm of the telephone receiver is arranged towards the sound guide hole; the sound guide hole is communicated with the sound outlet hole through a sound guide channel, and the sound guide channel is used for transmitting sound signals at the sound guide hole to the sound outlet hole.
Preferably, a gap is formed between the receiver and the circuit board, and the receiver is connected with the circuit board through a support.
Preferably, the support comprises a first support and a second support, and the first support and the second support are symmetrically arranged on two opposite sides of the sound guide hole.
Preferably, the two opposite sides of the receiver are respectively provided with a first elastic piece and a second elastic piece; one end of the first support is connected with the first elastic sheet, and the other end of the first support is connected with the circuit board; one end of the second support is connected with the second elastic sheet, and the other end of the second support is connected with the circuit board.
Preferably, a first dust screen is arranged at the sound outlet.
Preferably, a second dust screen is arranged at the sound guide hole.
Preferably, the receiver is arranged corresponding to the position of the sound outlet.
Preferably, the electronic device further comprises a first bracket and a second bracket which are arranged between the front shell and the circuit board, and the first bracket and the second bracket are symmetrically arranged on two opposite sides of the sound outlet hole; the receiver is arranged between the first bracket and the second bracket; the sound guide channel includes a gap between the first bracket and the second bracket.
Preferably, the positions of the receiver and the sound outlet are staggered.
Preferably, the electronic device further comprises a third bracket and a fourth bracket arranged between the front shell and the circuit board, wherein the third bracket and the fourth bracket are arranged on two opposite sides of the sound outlet hole; the receiver is arranged between the third bracket and the fourth bracket; the sound guide channel includes a gap between the third bracket and the fourth bracket.
According to the electronic equipment provided by the invention, the direction of the telephone receiver arranged between the circuit board and the front shell is reversed, and the sound guide hole is arranged on the circuit board, so that the vibrating diaphragm of the telephone receiver is arranged towards the sound guide hole on the circuit board, and the sound signal at the sound guide hole is transmitted to the sound outlet hole at the front shell through the sound guide channel, so that the problem of performance degradation or failure of the telephone receiver in the electronic equipment caused by the entering of external sundries is fundamentally avoided in structure, and the user experience is greatly improved.
Drawings
FIG. 1 is a schematic diagram of a prior art internal receiver of an electronic device;
fig. 2 is a schematic structural diagram of an electronic device according to a first embodiment of the present invention;
fig. 3 is a schematic structural view of a receiver according to a first embodiment of the present invention;
fig. 4 is a schematic structural view of a receiver according to a second embodiment of the present invention;
fig. 5 is a schematic structural diagram of an electronic device according to embodiment 1 of the present invention;
fig. 6 is a schematic diagram of the structure of a receiver according to embodiment 1 of the present invention.
Detailed Description
The following describes in detail the specific embodiments of the electronic device provided by the present invention with reference to the accompanying drawings.
First embodiment
The present embodiment provides an electronic device, fig. 2 is a schematic structural diagram of the electronic device according to the first embodiment of the present invention, and fig. 3 is a schematic structural diagram of a receiver according to the first embodiment of the present invention.
As shown in fig. 2 and 3, the electronic device of this embodiment includes a front shell 21, a rear shell 32, a circuit board 37 and a receiver 34, where a sound outlet 211 is formed on the front shell 21, and a sound signal emitted from the receiver 34 is finally transmitted to the outside through the sound outlet 211, so as to be received by the human ear. The specific position of the sound outlet 211 on the front shell 21 may be determined by those skilled in the art according to actual needs, and may be located at the upper end, the lower end or the side of the front shell 21, which is not limited in this embodiment. The circuit board 37 in this embodiment is preferably a Printed Circuit Board (PCB) because of its simple manufacturing process, small size, and light weight. The circuit board 37 is disposed in the sealed cavity enclosed by the front shell 21, the rear shell 32 and the outer frame 39, and a sound guide hole 371 is disposed on the circuit board 37. The specific size of the sound guide hole 371 can be set by those skilled in the art according to actual needs, and this embodiment is not limited thereto. The receiver 34 is disposed between the front case 21 and the circuit board 37 and connected to the circuit board 37, and the diaphragm 341 of the receiver 34 is disposed toward the sound guide hole 371. The circuit board 37 transmits the electric signal to the receiver 34, and the receiver 34 converts the received electric signal into a sound signal. In this embodiment, the diaphragm 341 of the receiver 34 is disposed toward the sound guide hole 371, and thus, the sound signal emitted from the receiver 34 propagates toward the sound guide hole 371. The sound guiding hole 371 is communicated with the sound outlet 211 through a sound guiding channel, and the sound guiding channel is used for transmitting the sound signal at the sound guiding hole 371 to the sound outlet 211. In this embodiment, the traditional mode of setting up the vibrating diaphragm of receiver towards the sound hole on the backshell has been changed, but reverse with the receiver, set up a sound guide hole on the circuit board for the vibrating diaphragm of receiver sets up towards the mode of sound guide hole, and transmits the sound signal of sound guide hole department to sound hole department through a sound guide passageway, and transmits to the external world through sound hole. In this embodiment, the vibrating diaphragm of receiver is set up against the sound hole promptly, so can effectually prevent to get into and influence the performance of receiver because of external impurity, very big improvement electronic equipment's life has strengthened user experience. The electronic device in this embodiment may be, but is not limited to, a mobile phone, a notebook computer, a tablet computer, and the like.
As shown in fig. 3, in this embodiment, in order to enhance the sound effect of the receiver, the path of the sound signal transmitted from the sound guiding hole to the sound outlet hole is reduced, that is, the length of the sound guiding channel is reduced, and the receiver 34 is disposed corresponding to the position of the sound outlet hole 211. Since the diaphragm 341 on the receiver 34 is disposed toward the sound guide hole 371, the position of the sound guide hole 371 is disposed corresponding to the position of the sound outlet hole 211.
In order to further reduce the length of the sound guide channel, enhance the sound effect of the receiver, and simplify the manufacturing process, more preferably, as shown in fig. 3, the electronic device further includes a first bracket 351 and a second bracket 352 disposed between the front case 21 and the circuit board 37, where the first bracket 351 and the second bracket 352 are symmetrically disposed on opposite sides of the sound outlet hole 211; the receiver 34 is disposed between the first bracket 351 and the second bracket 352; the sound guide channel includes a gap between the first bracket 351 and the second bracket 352. In this way, the receiver 34 is placed in the cavity formed by the first bracket 351 and the second bracket 352. Since the gap between the first bracket 351 and the second bracket 352 includes three parts of the gap between the first bracket 351 and the receiver 34, the gap between the second bracket and the receiver 34, and the gap between the receiver 34 and the front case 21, the sound guide passage is composed of three parts of the gap between the first bracket 351 and the receiver 34, the gap between the second bracket 352 and the receiver 34, and the gap between the receiver 34 and the front case 21. In order to prevent the influence of other sound signals inside the electronic device on the sound signals emitted from the receiver 34 and to prevent the leakage of the sound signals emitted from the receiver during the transmission process inside the sound guide channel, sound deadening materials, such as foam, are further disposed around the first bracket 351 and the second bracket 352.
In order to facilitate the sound signal emitted from the receiver 34 to be smoothly transmitted to the sound outlet 211 through the sound guide channel, preferably, a gap is formed between the receiver 34 and the circuit board 37, and the receiver 34 is connected to the circuit board 37 through the support. By providing a support for the receiver 34, there are several advantages: on the one hand, the overall height of the receiver 34 relative to the circuit board 37 is increased, and the overall loudness of the sound signal is improved, so that the sound signal emitted from the sound outlet 211 is larger and brighter; on the other hand, the front cavity volume of the receiver 34 is increased, and the low-frequency effect of the sound signal is increased; in addition, by providing a gap between the receiver 34 and the circuit board 37, the heat of the receiver 34 is more easily discharged, and the heat generated by the receiver 34 affects the circuit board 37. In this case, the sound guide channel is composed of four parts, namely, a gap between the first bracket 351 and the receiver 34, a gap between the second bracket 352 and the receiver 34, a gap between the receiver 34 and the front case 21, and a first gap between the receiver 34 and the circuit board 37, so that the sound transmission efficiency is improved and the sound effect is ensured.
In order to enhance the sound effect, it is preferable that the supporter includes a first supporter 361 and a second supporter 362, and the first supporter 361 and the second supporter 362 are symmetrically disposed at opposite sides of the sound guide hole 371. In order to simplify the structural design, more preferably, in the receiver 34 of the present embodiment, the two opposite sides of the receiver 34 are respectively provided with a first elastic piece 381 and a second elastic piece 382; one end of the first support 361 is connected with the first elastic piece 381, and the other end is connected with the circuit board 37; one end of the second support 362 is connected to the second spring 382, and the other end is connected to the circuit board 37. In order to facilitate the transmission of the electrical signals and simplify the overall circuit structure, it is preferable that the first support 361 and the second support 362 are made of metal conductive materials.
In order to prevent foreign objects from entering the sound outlet, it is preferable that the sound outlet 211 is provided with a first dust screen 33. In order to ensure the dust-proof effect, particularly, to prevent some fine scrap iron impurities, a dust screen having a large mesh size is preferably used as the material of the first dust screen 33.
In order to prevent the influence of the foreign matter entering from the other opening position of the electronic device on the diaphragm portion of the receiver, it is preferable that a second dust screen is provided at the sound guide hole 371. In order to ensure the dust-proof effect, particularly for preventing some tiny scrap iron impurities, a dust screen with a large mesh number is preferably adopted in the material of the second dust screen.
According to the electronic equipment provided by the invention, the direction of the telephone receiver arranged between the circuit board and the front shell is reversed, and the sound guide hole is arranged on the circuit board, so that the vibrating diaphragm of the telephone receiver is arranged towards the sound guide hole on the circuit board, and the sound signal at the sound guide hole is transmitted to the sound outlet hole at the front shell through the sound guide channel, so that the problem of performance degradation or failure of the telephone receiver in the electronic equipment caused by the entering of external sundries is fundamentally avoided in structure, and the user experience is greatly improved.
Second embodiment
The present embodiment provides an electronic device, and fig. 4 is a schematic structural diagram of a receiver according to a second embodiment of the present invention.
As shown in fig. 4, the electronic device of this embodiment includes a front shell 41, a rear shell 42, a circuit board 47 and a receiver 44, where a sound outlet 411 is formed on the front shell 41, and a sound signal emitted from the receiver 44 is finally transmitted to the outside through the sound outlet 411 to be received by the human ear. The specific position of the sound outlet 411 on the front case 41 may be determined by those skilled in the art according to actual needs, and may be located at the upper end, the lower end or the side of the front case 41, which is not limited in this embodiment. The circuit board 47 in this embodiment is preferably a Printed Circuit Board (PCB) because of its simple manufacturing process, small size, and light weight. The circuit board 47 is disposed in the sealed cavity enclosed by the front case 41, the rear case 42 and the outer frame 49, and a sound guide hole 471 is disposed on the circuit board 47. The specific size of the sound guide 471 can be set by those skilled in the art according to actual needs, and this embodiment is not limited thereto. The receiver 44 is disposed between the front case 41 and the circuit board 47 and connected to the circuit board 47, and the diaphragm 441 of the receiver 44 is disposed toward the sound guide hole 471. The circuit board 47 transmits the electric signal to the receiver 44, and the receiver 44 converts the received electric signal into a sound signal. In this embodiment, the diaphragm 441 of the receiver 44 is disposed toward the sound guide hole 471, and thus, the sound signal emitted from the receiver 44 propagates toward the sound guide hole 471. The sound guide hole 471 is communicated with the sound outlet 411 through a sound guide channel, and the sound guide channel is used for transmitting the sound signal at the sound guide hole 471 to the sound outlet 411. In this embodiment, the traditional mode of setting up the vibrating diaphragm of receiver towards the sound hole on the backshell has been changed, but reverse with the receiver, set up a sound guide hole on the circuit board for the vibrating diaphragm of receiver sets up towards the mode of sound guide hole, and transmits the sound signal of sound guide hole department to sound hole department through a sound guide passageway, and transmits to the external world through sound hole. In this embodiment, the vibrating diaphragm of receiver is set up against the sound hole promptly, so can effectually prevent to get into and influence the performance of receiver because of external impurity, very big improvement electronic equipment's life has strengthened user experience. The electronic device in this embodiment may be, but is not limited to, a mobile phone, a notebook computer, a tablet computer, and the like.
As shown in fig. 4, in the present embodiment, in order to further prevent the influence of the impurity entering from the sound outlet on the performance of the receiver, it is preferable that the receiver 44 is provided offset from the sound outlet 411. Since the diaphragm 441 on the receiver 44 is disposed toward the sound guide hole 471, the position of the sound guide hole 471 is offset from the position of the sound outlet hole 411. The offset arrangement means that the projection of the pilot sound hole 471 on the front case does not have an overlapping area with the sound outlet hole 411. For example, the sound guide hole 471 and the sound outlet hole 411 may be located at two opposite sides of the axis of the electronic device, and the specific positions of the sound guide hole 471 and the sound outlet hole 411 are not limited in this embodiment, and can be determined by a person skilled in the art according to actual needs, so long as the staggered arrangement of the sound guide hole 471 and the sound outlet hole 411 can be ensured.
In order to further reduce the influence of external impurities on the performance of the receiver and simultaneously ensure the sound effect of the receiver, it is preferable that the electronic device further comprises a third bracket 451, a fourth bracket 452, which are disposed between the front case 41 and the circuit board 47, the third bracket 451 and the fourth bracket 452 being disposed at opposite sides of the sound outlet 411; the receiver 44 is disposed between the third gap 451 and the fourth stand 452; the sound guide channel includes a gap between the third bracket 451 and the fourth bracket 452. In this way, the receiver 44 is placed in the cavity formed by the third stand 451 and the fourth stand 452. Since the gap between the third bracket 451 and the fourth bracket 452 includes three parts of the gap between the third bracket 451 and the receiver 44, the gap between the fourth bracket 452 and the receiver 44, and the gap between the receiver 44 and the front case 41, the sound guide channel is specifically composed of three parts of the gap between the third bracket 451 and the receiver 44, the gap between the fourth bracket 452 and the receiver 44, and the gap between the receiver 44 and the front case 41. In order to prevent the influence of other sound signals inside the electronic device on the sound signals emitted from the receiver 44 and to prevent leakage of the sound signals emitted from the receiver during the transmission process inside the sound guide channel, sound deadening materials, such as foam, are further provided around the third bracket 451 and the fourth bracket 452.
In order to facilitate the sound signal emitted from the receiver 44 to be smoothly transmitted to the sound outlet 411 through the sound guide channel, it is preferable that a gap is formed between the receiver 44 and the circuit board 47, and the receiver 44 is connected to the circuit board 47 through the support. By providing a support for the receiver 44, there are several advantages: on the one hand, the overall height of the receiver 44 relative to the circuit board 47 is increased, and the overall loudness of the sound signal is improved, so that the sound signal emitted from the sound outlet 411 is larger and brighter; on the other hand, the front cavity volume of the receiver 44 is increased, increasing the low frequency effect of the sound signal; in addition, by providing a gap between the receiver 44 and the circuit board 47, the heat of the receiver 44 is more easily discharged, and the heat generated by the receiver 44 affects the circuit board 47. In this case, the sound guide passage is composed of four parts, specifically, a gap between the third bracket 451 and the receiver 44, a gap between the fourth bracket 452 and the receiver 44, a gap between the receiver 44 and the front case 41, and a first gap between the receiver 44 and the circuit board 47, so that the sound transmission efficiency is improved and the sound effect is ensured.
In order to enhance the sound effect, it is preferable that the supporter includes a first supporter 461 and a second supporter 462, and the first supporter 461 and the second supporter 462 are symmetrically disposed at opposite sides of the sound guide hole 471. In order to simplify the structural design, more preferably, in the receiver 44 of the present embodiment, the two opposite sides of the receiver 44 are respectively provided with a first elastic piece 481 and a second elastic piece 482; one end of the first support 461 is connected with the first spring plate 481, and the other end is connected with the circuit board 47; one end of the second support 462 is connected to the second spring 482, and the other end is connected to the circuit board 47. In order to facilitate the transmission of the electrical signals and simplify the overall circuit structure, it is preferable that the first support 461 and the second support 462 are made of a metal conductive material.
In order to prevent foreign objects from entering the sound outlet hole, it is preferable that the sound outlet hole 411 is provided with a first dust screen 43. In order to ensure the dust-proof effect, particularly, to prevent some fine scrap iron impurities, a dust screen having a large mesh size is preferably used as the material of the first dust screen 33.
In order to prevent the influence of the foreign matter entering from the other opening position of the electronic device on the diaphragm portion of the receiver, it is preferable that a second dust screen is provided at the sound guide hole 471. In order to ensure the dust-proof effect, particularly for preventing some tiny scrap iron impurities, a dust screen with a large mesh number is preferably adopted in the material of the second dust screen.
According to the electronic equipment provided by the invention, the direction of the telephone receiver arranged between the circuit board and the front shell is reversed, and the sound guide hole is arranged on the circuit board, so that the vibrating diaphragm of the telephone receiver is arranged towards the sound guide hole on the circuit board, and the sound signal at the sound guide hole is transmitted to the sound outlet hole at the front shell through the sound guide channel, so that the problem of performance degradation or failure of the telephone receiver in the electronic equipment caused by the entering of external sundries is fundamentally avoided in structure, and the user experience is greatly improved.
Example 1
Fig. 5 is a schematic structural diagram of an electronic device according to embodiment 1 of the present invention, and fig. 6 is a schematic structural diagram of a receiver according to embodiment 1 of the present invention.
The electronic device in this embodiment is a smart phone, and a schematic structural diagram of the smart phone is shown in fig. 5. The smart phone comprises a front shell 51 and a touch screen 52 embedded in the front frame 51, a sound outlet 511 is formed in the upper portion of the front frame 51, namely above the touch screen 52, and sound signals emitted from a receiver in the smart phone finally penetrate into human ears through the sound outlet 511 and are received by a user.
As shown in fig. 5 and 6, the smart phone has a sealed cavity surrounded by a front case 51, a rear case 62 and an outer frame 69, a printed circuit board 67 is disposed in the cavity, the printed circuit board 67 is used for providing an electrical signal to the receiver 64, and a sound guiding hole 671 is disposed on the printed circuit board 67 at a position corresponding to the sound outlet 511, in this embodiment, the size and shape of the sound guiding hole 671 are the same as those of the sound outlet 511. The receiver 64 is disposed between the printed circuit board 67 and the front case 51, and in order to prevent the influence of external impurities on the diaphragm in the receiver 64, the diaphragm 641 of the receiver 64 in the present embodiment is disposed opposite to the sound guide hole 671 on the printed circuit board 67. Thus, the sound signal emitted from the receiver 64 propagates in the direction of the sound hole 671. Specifically, in the present embodiment, the first bracket 651 and the second bracket 652 are further disposed between the printed circuit board 67 and the front case 51, and the first bracket 651 and the second bracket 652 are symmetrically disposed on opposite sides of the sound outlet 511, so that the receiver is disposed in a cavity formed by the first bracket 651, the second bracket 652, the printed circuit board 67 and the front case 51. In this embodiment, the receiver 64 is a dome-type receiver, that is, the receiver 64 includes a first dome 681 and a second dome 682, a first gap is formed between the receiver 64 and the printed circuit board 67, and the receiver is connected to the printed circuit board 67 through two supports, as shown in fig. 6, one end of the first support 661 is connected to the first dome 681, the other end is connected to a first welding point on the printed circuit board 67, and one end of the second support 662 is connected to the second dome 682, and the other end is connected to a second welding point on the printed circuit board 67. In order to conduct the sound signal at the sound guiding hole 671 to the sound outlet 511 for receiving by the human ear, in the present embodiment, there is a second gap between the first stand 651 and the receiver 64, and a third gap between the second stand 652 and the receiver 64, and a sound guiding channel is formed by the first gap between the receiver 64 and the printed circuit board 67, the second gap between the first stand 651 and the receiver 64, the third gap between the second stand 652 and the receiver 64, and the gap between the receiver 64 and the front housing 51, so as to conduct the sound signal emitted from the diaphragm 641 of the receiver 64 to the sound outlet 511, and transmit the sound signal from the sound outlet 511 to the outside.
In order to further prevent the influence of foreign substances outside or inside the smart phone on the performance of the receiver, in the present embodiment, a first dust screen 631 is provided at the sound outlet hole 511, and a second dust screen 632 is provided at the sound guide hole 671.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (8)
1. The electronic equipment comprises a front shell, a rear shell, a circuit board and a receiver, wherein a sound outlet hole is formed in the front shell, and the circuit board is arranged in a closed cavity of a surrounding city of the front shell and the rear shell; the telephone receiver is arranged between the front shell and the circuit board and is connected with the circuit board, and the vibrating diaphragm of the telephone receiver faces the sound guide hole and is arranged opposite to the sound outlet hole so as to prevent external impurities from entering to influence the performance of the telephone receiver; the sound guide hole is communicated with the sound outlet hole through a sound guide channel, and the sound guide channel is used for transmitting sound signals at the sound guide hole to the sound outlet hole;
the electronic equipment further comprises a first bracket and a second bracket which are arranged between the front shell and the circuit board, wherein the first bracket and the second bracket are arranged on two opposite sides of the sound outlet hole; the telephone receiver is arranged between the first bracket and the second bracket, a gap is formed between the first bracket and the telephone receiver, and a gap is formed between the second bracket and the telephone receiver; the sound guide channel includes a gap between the first bracket and the receiver, a gap between the second bracket and the receiver, and a gap between the receiver and the front case.
2. The electronic device of claim 1, wherein a gap is provided between the receiver and the circuit board, and the receiver is connected to the circuit board by a support.
3. The electronic device of claim 2, wherein the support comprises a first support and a second support, the first support and the second support being symmetrically disposed on opposite sides of the sound guide hole.
4. The electronic device of claim 3, wherein the receiver has a first spring and a second spring on opposite sides thereof; one end of the first support is connected with the first elastic sheet, and the other end of the first support is connected with the circuit board; one end of the second support is connected with the second elastic sheet, and the other end of the second support is connected with the circuit board.
5. The electronic device of claim 1, wherein a first dust screen is disposed at the sound outlet.
6. The electronic device of claim 1, wherein a second dust screen is disposed at the sound guide hole.
7. The electronic device of any of claims 1-6, wherein the receiver is positioned corresponding to a location of the sound outlet.
8. The electronic device of any of claims 1-6, wherein the receiver is offset from the sound outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN106993251B true CN106993251B (en) | 2024-04-12 |
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| CN108667990A (en) * | 2018-06-08 | 2018-10-16 | Oppo广东移动通信有限公司 | Housing unit and electronic equipment |
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| CN106993251A (en) | 2017-07-28 |
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